Fountain for filtering, under pressure, water, &amp;c.



No. 643,68l. Patented Feb. 20, I900.

G. PBEVET.

FOUNTAIN FOR FILTERINQUNDER PBESSUBE,WATEB, 8w. (Application filed June6, 1899.) (No Model.) 2 Shasta-Shoat L dim M- No. 643,68l. Patented Feb.20, I900.

C. PREVET. FOUNTAIN FOB FILTERING UNDEB PRESSUBLWATEB, 8w.

(Application filed June 6, 1899.)

2 Sheets-Shae 2.

(Nu Modal.)

INVENTUR C/uvlm BY WITNESSES;

ATTIJRNEYS.

UNITED STATES PATENT OFFICE.

CHARLES PREVET, OF PARIS, FRANCE.

FOUNTAIN FOR FILTERING, UNDER PRESSURE, WATER, 86C.

SPECIFICATION forming part of Letters Patent N 0. 643,681, datedFebruary 20, 1900.

Application filed June 6 1899. Serial No. 719,529. (No model.)

To all whom it may concern.-

Be it known thatI, CHARLES PRnvET', of 30 Rue du Faubourg Poissonniere,in the city of Paris, Republic of France, have invented an ImprovedFiltering Fountain for Filtering, Under Pressure, Water or otherLiquids, of which the following is a full, clear, and exact description.

This invention relates to a stationary or transportablefiltering-fountain which will filter as rapidly as if the filter wereconnected to a supply-pipe for water or other liquid under pressure.

This invention has for its object to provide a simple and efficientfilter wherein a receiver containing water or any other liquid which itis intended to filter may be contained. At the lower part of saidreceiver is arranged the filter proper, and at the upper part there is aslot or opening provided with a valve, to which is secured a suitabletube, which may be connected to an air-pump for driving or compressingair or any suitable gas in the space between the level of the liquid andthe upper part of the receiver. The compressed air exerting a pressureupon the liquid, the filtering will of course be accelerated accordingto the rate of compression of the air.

In order to be better understood, I have shown in the accompanyingdrawings a filtering-fountain made according to my invention.

Figure 1 shows this filtering-fountain in vertical section. Fig. 2 is ahorizontal section thereof. Fig. 3 is a detail side view, partly insection, of the filtering element. Fig. 4 is a plan view of the same.

In the drawings, a is a receiver into which the water or other liquid tobe filtered is introduced through a tube 1), crowned with a funnel a,closed by a plug or stopper (1. Toward the upper part of the receiver isa small air-inlet valve e, closed by a stopper f. In the bottom of thereceiver is arranged the filter proper. Said filter, inclosed in acasing h, communicating with the inner part of the receiver through apipe 9, comprises a lensshaped chambered disk i of carbon and unsizedpaper secured upon opposite sides of the said disk, as specified in myformer United States Patent No. 598,007, dated January 25, 1898. Thenozzle of the filter ends in a drawofE cock The filtering element isillustrated in. detail in Figs. 3 and 4 of the drawings, whereinldesignates a foraminous chambered shell in open communication with thenozzle 19. Supported upon opposite sides of the shell Z are the disks '5of suitable filtering-paper. These disks are secured in place by atwo-part ring m, hinged at 0 and adapted to be secured together bysuitable clamps n.

In the filling operation water is preferably poured into the funnel 0until the pipe I) is submerged. There remains then an air-cushionbetween the level of the liquid and the upper part of the receiver. Whenthe apparatus is required to work, an air-pump is branched upon thesupply 6, and then air is driven and compressed into the receiver. Inorder to get filtered water, the draw-oft cock j is opened, and underthe pressure of the air the water then passes rapidly through the filterand is delivered in a continuous flow.

I claim- 1. An improved filtering-fountain not connected to any main orpipe for water or other liquid under pressure-comprising a receiverinclosing in its bottom the filtering device and in its top an openingwith a valve, a tube provided with a funnel arranged at the upper partof the receiver for easily introducing liquid and preventing the comingout ofthe air filling the space between the upper part of the receiverand the level of the liquid, substantially as described.

2. An improved filtering-fountain not connected to any main or pipe forwater or other liquid under pressure, comprising a receiver having atits upper part an opening with a suitable valve and a pipe with afunnel, and in its lower part a casin g communicating with the innerpart of the fountain and containing a filter composed of a lens-shapedchambered disk of carbon, and unsized paper secured upon opposite sidesof the said disk, substantially as described and represented in theaccompanying drawings.

The foregoing specification of my Im proved filtering-fountain forfiltering, under pressure, water or other liquids signed by me this 26thday of May, 1899.

CHARLES PREVET.

Witnesses:

EDWARD P. MAOLEAN, MAURICE HENRI PIGNET.

